Not after it's run you don't.

You just run it again.

    $ rm -rfv huge_dir
    (A zillion removed files scroll past)

Now check if any of the removed files that were dumped out contain “foo.txt”.

No, “just run it again” doesn’t work.

I can’t always do this.

It could take a long time to run, and my time is not free. The native MacOS terminal has a buffer search, why doesn't ghostty? It is a rudimentary feature.